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Squalus blainville (Risso, 1827)

Longnose spurdog
مشاهدات خود را اضافه کنيد در Fish Watcher
Native range | All suitable habitat | Point map | Year 2050
This map was computer-generated and has not yet been reviewed.
Squalus blainville   AquaMaps   Data sources: GBIF OBIS
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Pictures | تصوير گوگل
Image of Squalus blainville (Longnose spurdog)
Squalus blainville
Picture by The Fish Database of Taiwan

رده بندی / Names اسامي عام | مترادف | Catalog of Fishes(جنس, گونه ها) | ITIS | CoL | WoRMS | Cloffa

(كوسه ها و سپرماهيان) (sharks and rays) > Squaliformes (Sleeper and dogfish sharks) > Squalidae (Dogfish sharks)
Etymology: Squalus: Genus name from Latin 'squalus' meaning shark (Ref. 6885, 27436).
More on author: Risso.

Environment: milieu / climate zone / depth range / distribution range بوم شناسي

دريايي; لب شور نزديك كف زي; تغييرات عمق 15 - 1500 m (Ref. 125614). Subtropical; 11°C - 18°C (Ref. 54892); 50°N - 37°S, 20°W - 38°E (Ref. 54892)

پراكنش كشورها | مناطق سازمان خوار و بار جهاني (FAO) | Ecosystems | ظهور | Point map | معرفي | Faunafri

Eastern Atlantic: Bay of Biscay to Mediterranean, Morocco, Senegal to Namibia (these records may include other species in addition to Squalus blainvillei). Although reported from the Canary Islands (e.g. Ref. 247), it is most likely based on misidentifications of Squalus megalops (Ref. 6808). Western Pacific: southern Japan and Taiwan. Nominal records of Squalus blainville or Squalus fernandinus from the western Atlantic (North Carolina, USA to northern Gulf of Mexico; Argentina), Indian Ocean (South Africa, Mozambique, Madagascar, Tanzania and India) and the Pacific (Australia, New Zealand, New Caledonia, Hawaii and northern Chile), as well as some records from the northwest Pacific and eastern Atlantic are based at least in part on Squalus mitsukurii and possibly other species. Whether Squalus blainville itself is as wide-ranging as reported for blainville-group dogfishes (including Squalus mitsukurii) remains to be determined.

Length at first maturity / Size / Weight / سن

Maturity: Lm 57.1, range 57 - 58 cm
Max length : 122 cm TL جنس نر / بدون خواص جنسي; (Ref. 86318); 117.5 cm TL (female); بيشينه وزن گزارش شده: 7.3 kg (Ref. 86318)

زيست شناسي     واژه نامه (بعنوان مثال epibenthic)

Found on the continental shelves and upper slopes. Depth range from 16-440 m (Ref. 0247), and from 300-780m in the eastern Ionian Sea (Ref. 56504). Forms schools. Off West Africa, water temperature and salinity where this species is often found ranges from 11-18°C and 36 ppt. (at 16 to 255 m depth), respectively. Feeds on bony fishes, like denticids, mackerel and percichthyids, as well as crabs, lobsters, and octopi. Ovoviviparous, with 3 to 4 young per litter. Utilized fresh, dried salted and smoked for human consumption.

Life cycle and mating behavior Maturities | تولید مثل | Spawnings | Egg(s) | Fecundities | توزاد ( لارو)

Distinct pairing with embrace (Ref. 205). Ovoviviparous, with 3 to 4 young per litter. Young born at about 23 cm (Ref. 247).

مآخذ اصلی Upload your references | مراجع | هماهنگ كننده : Compagno, Leonard J.V. | همكاران

Compagno, L.J.V., 1984. FAO Species Catalogue. Vol. 4. Sharks of the world. An annotated and illustrated catalogue of shark species known to date. Part 1 - Hexanchiformes to Lamniformes. FAO Fish. Synop. 125(4/1):1-249. Rome, FAO. (Ref. 247)

وضعيت در فهرست قرمز IUCN (Ref. 130435)

  کمبود داده (DD) ; Date assessed: 31 August 2020

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

خطر برای انسان ها

  Harmless





استفاده انسانی

ماهي گيري – شيلات: تجاري
FAO - ماهي گيري – شيلات: landings, نمايه گونه; Publication: search | FishSource | Sea Around Us

اطلاعات بيشتر

Trophic ecology
اقلام غذايي
Diet compositions
Food consumptions
Food rations
شکارچیان
Population dynamics
Growths
Max. ages / sizes
Length-weight rel.
Length-length rel.
نوسانات طولی
Mass conversions
Recruitments
Abundances
Life cycle
تولید مثل
Maturities
Fecundities
Spawnings
Spawning aggregations
Egg(s)
Egg developments
توزاد ( لارو)
پويايي لاروي
Anatomy
Gill areas
مغزها
Otoliths
Physiology
Body compositions
Nutrients
Oxygen consumptions
Swimming type
Swimming speeds
Visual pigment(s)
صداهاي ماهي ها
Diseases / Parasites
Toxicities (LC50s)
Genetics
ژنتيك
Electrophoreses
Heritabilities
Human related
Aquaculture systems
نمايه هاي آبزي پروري
نژادها
Ciguatera cases
Stamps, coins, misc.
Outreach
همكاران
References
مراجع

ابزارها

گزارش های ويژه

بارگيری XML

منابع اينترنتي

AFORO (otoliths) | Aquatic Commons | BHL | Cloffa | BOLDSystems | Websites from users | فيش واچر را ببينيد | CISTI | Catalog of Fishes: جنس, گونه ها | DiscoverLife | ECOTOX | FAO - ماهي گيري – شيلات: landings, نمايه گونه; Publication: search | Faunafri | Fishipedia | Fishtrace | GenBank: ژنوم, نوکلئوتيد | GloBI | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | پايگاه هاي داده ها | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Socotra Atlas | Tree of Life | Wikipedia: برو, جستجو | World Records Freshwater Fishing | Zoological Record

Estimates based on models

Preferred temperature (Ref. 123201): 10.3 - 15.6, mean 13.4 °C (based on 273 cells).
Phylogenetic diversity index (Ref. 82804):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00324 (0.00271 - 0.00387), b=3.06 (3.01 - 3.11), in cm total length, based on LWR estimates for this species (Ref. 93245).
Trophic level (Ref. 69278):  4.0   ±0.4 se; based on diet studies.
جهندگی (Ref. 120179):  خیلی آهسته, كمينه زمان لازم براي دو برابر شدن جمعيت بيش از 14 سال (K=0.10-0.14; Fec=3).
Fishing Vulnerability (Ref. 59153):  High to very high vulnerability (68 of 100).
طبقه قيمت (Ref. 80766):   Medium.
Nutrients (Ref. 124155):  Calcium = 20.2 [4.1, 89.6] mg/100g; Iron = 0.642 [0.164, 1.857] mg/100g; Protein = 19.2 [17.4, 20.8] %; Omega3 = 0.436 [0.168, 1.157] g/100g; Selenium = 32.8 [10.3, 89.8] μg/100g; VitaminA = 8.6 [3.3, 23.0] μg/100g; Zinc = 0.618 [0.309, 1.173] mg/100g (wet weight);